No fatalities

11 Jun 2010: BURKHART GROB G103C TWIN III ACRO — NORTHERN CALIFORNIA SOARING ASSOCIATION — Minden, NV

Minden, NV, United States

On 11 Jun 2010, a BURKHART GROB G103C TWIN III ACRO operated by NORTHERN CALIFORNIA SOARING ASSOCIATION was involved in an aviation accident near Minden, NV. No fatalities were reported. Investigators recorded the probable cause as: The pilot's encounter with an area of degraded lift during cruise flight, resulting in a forced off-airport landing. This summary draws on records from NTSB; 13 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

A glider pilot performing an off-field landing after encountering sinking air lost the tail assembly when the left wing contacted the ground during the landing roll.

Incident Overview

A glider pilot reported that during cruise flight, the aircraft encountered significant sinking air, which prevented the pilot from reaching the intended destination glider port. The pilot decided to conduct an off-field landing in a field.

Landing and Sequence of Events

During the landing roll, the left wing of the glider made contact with the ground. This contact caused the glider to turn to the left. As the glider turned, the tail assembly separated from the fuselage. The separation resulted in substantial damage to the tail structure.

Pilot Statement

According to the pilot, the decision to land off-field was prompted by the inability to maintain altitude to reach the glider port due to the sinking air encountered during cruise.

Damage Assessment

The tail assembly sustained substantial damage following its separation from the fuselage. The rest of the glider's structure was not reported to have additional damage beyond the tail section.

Contributing factors

Causes

Thermal lifting

Other contributing factors

Contributed to outcome